Improvement in tubular frames of wheelbarrows and trucks



.KMQ')" BECKWITH W. TUTHILL.

I Improvement in Tubular Frames of Wheelbarrows and Trucks.

No.12} 916, v Patented Dec-12,1871.

UNITED STATES PATENT OFFICE.

BEOKWITH W. TUTHILL, OF NEW YORK, N. Y.

IMPROVEMENT IN TUBULAR FRAMES OF WHEELBARROWS AND TRUCKS.

Specification forming part of Letters Patent N 0. 121,916, datedDecember 12,1871.

To all whom it may concern:

Be it known that I, BEGKWITH W. TUTHILL, of the city, county, and Stateof New York, have invented a new and useful Improvement in TubularFrames of Wheelbarrows and Trucks; and I do hereby declare that thefollowing is a full, clear, and exact description of the same, referencebeing had to the accompanying drawing forming part of thisspecification, and in which Figure 1 represents a partly-sectional planor face view of a barrow or truck-frame, in part, constructed inaccordance with my invention; Fig. 2, sectional views of the cross-tubesof the frame, in part, with pertaining devices, taken at the lines aandy in Fig.1. Figs.3 and 4 are views,in perspective, of certain thimblesor sockets used in my invention.

Similar letters of reference indicate corresponding parts throughout thedrawing.

My invention relates to the tubular frames of barrows and trucks asdescribed in Letters Patent issued to me September 28, 1869, for animprovement in wheelbarrows, in which both the side and transversepieces of the frame are composed of metal tubes, the latter acting asbraces between the side pieces, and being secured by rods passingtransversely through the side pieces and longitudinally through thecross-tubes, and fastened on the outside by screw-nuts. In thus makingsaid frames there has been more or less of difficulty in cutting orshaping the ends of the transverse tubes or braces to clip or fit theside tubes of the frame, and special tools and nice manipulation havebeen necessary to effect a perfect fit or solid connection of thetransverse tubes with the side ones.

My inventions obviate this difficulty and economize the construction ofthe frame, the same consisting of a combination, with the side andtransverse tubes of the frame, of cast-iron thimbles or socketsconstructed to receive over or within them the ends of the transversetubes or braces and to clip or fit the side tubes, whereby the ends ofthe transverse tubes may be cut plain or straight and have a solidbearing in or on the thimbles, that are readily shaped or cast to fitthe side tubes.

Referring to the accompanying drawing, A A represent the side tubes of abarrow or truckframe, and B B the transverse tubes or braces, or certainof them. 0 O are the bo1ts,fitted with washers b b and nuts 0 c, forsecuring the connection of the cross-tubes or braces with the side tubesof the frame and tying or holding the whole together, said bolts passingtransversely through the side tubes and longitudinally through thecross-tubes or braces, and also through the castmetal thimbles orsockets D D, made of a form to snugly fit or clip the sides of the sidetubes A A and to receive the ends of the transverse tubes B B within orover them. The sockets D are constructed to receive the ends of thetransverse tube B over them, and the sockets D formed to receive theends of the transverse tube B within them. The latter constructionadmits of smaller t1 ansverse tubes being used-that is,diametrica1ly-but in either case the transverse tubes stop short of theWidth between the side tubes, and are made square or plain at their endsto take a firm bearing against a shoulder or shoulders in or on thethimbles or sockets, which latter may be cast with projections arrangedto fit into notches in the ends of the transverse tubes to keep themfrom turning; or said tubes may be keyed or otherwise suitably fastenedto the sockets. This forms a simple, cheap, and efficient construction.

What is here claimed, and desired to be secured by Letters Patent, is-

The combination, with the side tubes A A, transverse tubes B or B, andtie-rods O O, of the cast-metal thimbles or sockets D or D, constructedto fit or clip the side tubes and to receive the ends of the transversetubes within or over them, substantially as specified.

BEGKWITH W. TUTHILL.

Witnesses FRED. HAYNES,

